Geothermal 2 — Plant Summary
- EIA Plant ID
- 7369
- Capacity
- 110 MW
- Primary Fuel
- Geothermal
- Technology
- Geothermal
- Status
- Operating
- Location
- Sonoma, CA
- Operating Since
- 1985
- Generators
- 2
- Operator
- Northern California Power Agny
- Parent Company
- —
- Annual Generation
- 321,675 MWh
- Capacity Factor
- 33.4%
- Balancing Authority
- California Independent System Operator
- ISO/RTO
- CAISO
- NERC Region
- WECC
Geothermal 2
OperatingGeothermal
Ranked #4 of 33 Geothermal plants in CA#6 of 70 nationally
110 MW Geothermal operating in Sonoma, CA — California Independent System Operator
EIAGEMWD
110 MW
Nameplate Capacity
2
Generators
units
Geothermal
Technology
1985
Operating Since
Location
Coordinates
38.7492, -122.7117
County
Sonoma, CA
Nearby Plants
- Geothermal 1Geothermal110 MW · 0.7 km
- Bear CanyonBESS13 MW · 2.2 km
- Geysers Unit 5-20Geothermal1163 MW · 4.2 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Northern California Power Agny | Northern California Power Agency | — |
| Owner(s) | Northern California Power Agny | — | — |
| Status | Operating | operating | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
Geothermal 2 is a 110 MW geothermal power plant located in Sonoma County, California. The plant began operating in 1985 and is owned and operated by Northern California Power Agency. It utilizes geothermal technology and consists of two generators. Geothermal 2 is connected to the California Independent System Operator (CAISO) balancing authority within the Western Electricity Coordinating Council (WECC) NERC region.
In the most recent year with available data, Geothermal 2 generated 321,675 MWh of electricity, achieving a capacity factor of 33.4%. The plant is the third-largest of four geothermal plants in California, and ranks fifth out of seven geothermal plants nationally.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
California Independent System Operator
Grid Voltage
230 kV
Regulatory Status
RE
Entity Type
Political Subdivision
Sector
Electric Utility
Generation
29.5K MWh
Latest Month
321.7K MWh
Annual Generation
33.4%
Capacity Factor
Jan 2023 – Dec 2025
Financial Data
No financial data available for this plant.
Pricing & Market Data
MEDIUM confidenceMarket Position
ISO/RTO Market
CAISO
LMP Node
BERCYN_7_N001
Pricing Hub
TH_NP15_GEN-APND
Location Type
Pricing Node
Node Source
Curated node match
News & Articles (2)Beta
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Industry·technology
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